timer

timer is a library to time your Python code.

Installation

pip install timer4  # not timer

Usage

• timer uses with statement to watch how long your code running:

import time
from timer import Timer


with Timer().watch_and_report(msg='test'):
    # running code that do lots of computation
    time.sleep(1.0)

# when the code reach this part, it will output the message and the time it tooks.
# for example:
#     test: 10.291 seconds

• If you don't want to report the result immediately, use the watch method instead. Whenever you've done, call report.

import time
from timer import Timer

# you can either create a timer variable first, or use Timer.get_instance()
# that will return a singleton variable.

total = 0
for item in range(7):
    # only measure the part that we want
    with Timer.get_instance().watch("sum of square"):
        total += item ** 2
        time.sleep(0.2)

    # doing other things that we don't want to measure
    time.sleep(0.8)

Timer.get_instance().report()

• You can also use different way to print the message, such as using logging by passing a printing function to the report method: report(print_fn=logger.info)

• You can also choose to append the result to a file report(append_to_file='/tmp/runtime.csv'). This is useful if you want to measure runtime of your method and put it to a file to plot it later.